ADS7959QDBTRQ1

Analog To Digital Converters (ADC) Overview

The ADS7959QDBTRQ1 is an automotive-grade, single-ended, micro-power analog-to-digital converter (ADC) from Texas Instruments. It features a successive-approximate register (SAR) architecture with an integrated sample-and-hold circuit. The device operates on an analog supply voltage ranging from 2.7 V to 5.25 V and a digital I/O supply range of 1.7 V to 5.25 V. It delivers a sampling rate of 1 MSPS with 8-bit resolution across eight channels. Typical power consumption is 14.5 mW at 1 MSPS. The component is housed in a 30-pin TSSOP package and supports AEC-Q100 Grade 1 qualification for operation between -40°C and +125°C.

Analog To Digital Converters (ADC) Feature Summary

• AEC-Q100 qualified for automotive applications with specified temperature ranges and ESD ratings
• Low-power SAR ADC architecture suitable for battery-operated systems
• Configurable input ranges supporting 0 V to Vref or 0 V to 2xVref selections
• Integrated programmable GPIOs with dual-channel alarm threshold capabilities

Analog To Digital Converters (ADC) Applications

• Automotive sensor monitoring systems requiring multi-channel data acquisition
• Battery-powered industrial instrumentation with isolation requirements
• Vehicle body control modules utilizing low-power signal conversion

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix Q1 indicates AEC-Q100 automotive qualification status before integration. Confirm the DBTRQ1 designation corresponds to the correct tape-and-reel packaging format for automated assembly lines. Ensure compatibility with existing SPI interface protocols used in the target host controller design.

Analog To Digital Converters (ADC) Selection Notes

Select this component when eight single-ended channels are required within a constrained power budget. The 1 MSPS throughput meets moderate-speed acquisition needs without excessive thermal dissipation. Verify that the external reference voltage aligns with the selected input range configuration for optimal dynamic performance.

Analog To Digital Converters (ADC) Part Context

This part belongs to the ADS79xx-Q1 family of micro-power ADCs designed specifically for automotive environments. It shares architectural similarities with other members like the ADS7956Q and ADS7953Q but offers a distinct eight-channel configuration. The series emphasizes low power consumption while maintaining high accuracy for critical vehicle subsystems.

Analog To Digital Converters (ADC) Replacement Considerations

Direct substitutes include ADS7956QDBTRQ1 for four-channel applications or ADS7953QDBTRQ1 for sixteen-channel requirements. Non-automotive equivalents such as the standard ADS7959 may lack the necessary reliability certifications for automotive deployment.